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Nano-cavity organic laser arrays realized in holographic sculptured polymeric structures

Nano-cavity organic laser arrays realized in holographic sculptured polymeric structures

Objective

The aim of the project is the experimental realization and characterization of ultralow threshold tuneable organic lasing structures. It has been demonstrated in the past, that under particular conditions, a cholesteric liquid crystal (CLC) material doped with a dye component (or a mixture of them) can constitute a lasing system. It has been also shown that the lasing threshold of this system inversely scales with the volume occupied by the active medium. Hence, the confinement of the dye-doped cholesteric material within nanosized cavities can result in an ultra-low or even zero-threshold lasing system.

These cavities can be sculptured in a suitable photosensitive polymeric substrate by means of a highly precise and very short-pitched periodic light pattern obtained by holographic techniques and afterwards filled with the CLC-dye mixture. The cited techniques are very flexible and ensure a huge variability in the choice of the experimental parameters. This represents a research key point to reach a full optimization of the system and hence the success of the project.

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Coordinator

DIPARTIMENTO DI FISICA - UNIVERSITA DELLA CALABRIA

Address

Via Pietro Bucci - Cubo 31c
Rende

Italy

Administrative Contact

Roberto BARTOLINO (Professor)

Participants (1)

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CONSIGLIO NAZIONALE DELLE RICERCHE

Italy

Project information

Grant agreement ID: 46428

  • Start date

    1 July 2007

  • End date

    30 June 2008

Funded under:

FP6-MOBILITY

Coordinated by:

DIPARTIMENTO DI FISICA - UNIVERSITA DELLA CALABRIA

Italy